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Researchers have for the first time detected chemical traces of red pigment in an ancient fossil – an exceptionally well-preserved mouse, not unlike today’s field mice, that roamed the fields of what is now the German village of Willershausen around 3 million years ago.

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Tyrannosauroid dinosaurs have a long evolutionary history and include iconic giants like Tyrannosaurus rex. Now an international research team including Alan H. Turner, PhD, from Stony Brook University, have uncovered the skeleton of a small tyrannosaur from Late Cretaceous rocks in New Mexico.

Scientists at The Ohio State University have discovered a new species that lived more than 500 million years ago—a form of ancient echinoderm that was ancestral to modern-day groups such as sea cucumbers, sea urchins, sea stars, brittle stars and crinoids. The fossil shows a crucial evolutionary step by echinoderms that parallels the most important ecological change to have taken place in marine sediments.
The discovery, nearly 30 years in the making, was published recently in the Bulletin of Geosciences.